Should all clothes worn during menstruation be washed?

Q 1: Should all the clothes worn by a menstruating woman during her menses be washed, even if they are not stained with any blood?

A: None of the clothes worn by a menstruating woman during her menses should be washed except those that are stained with menstrual blood. As for the sweat and saliva of a menstruating woman, they are Tahir (ritually pure).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.